code: def test_text_dataset_from_directory_no_files(self):
      directory = self._prepare_directory(num_classes=2, count=0)
      with self.assertRaisesRegex(ValueError, "No text files found"):
          _ = text_dataset_utils.text_dataset_from_directory(directory)
  
file_path: keras/keras/utils/text_dataset_utils_test.py
imports: import os
  import random
  import string
  from keras import testing
  from keras.utils import text_dataset_utils
label_desc: Use image node_id 9 for calling the TextDatasetFromDirectoryTest obj's underlying member method code with example usage: obj.test_text_dataset_from_directory_no_files() without return types